Structural properties, Sulfate, Transitional

• Fe-H-O-S
• Fe-H-K-O-S
• Cu-H-N-O-S
• Fe-H-Na-O-S
• Cu-H-O-S
• transitional
• sulfate
• chalcogen
• non-disordered
• monoclinic
• trigonal
• orthorhombic
• triclinic
• cubic